Wireless speaker



FIG. 1 is a front elevational view of a wireless speaker showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top front perspective view thereof; and,

FIG. 8 is a rear, bottom perspective view thereof. 

The ornamental design for a wireless speaker, as shown. 